Yum! Digital & Technology is on a mission to revolutionize the QSR industry through Byte by YUM—our cutting-edge digital commerce platform powering iconic brands including KFC, KFC, and Pizza Hut worldwide. Byte is transforming how millions of customers discover, engage with, and order from their favorite brands across web, mobile, and loyalty experiences.As a Senior Software Engineer II on the KFC Experience Team, you will design, build, and enhance KFC's digital commerce experiences. Working as a hands-on engineer, you will develop modern, scalable web applications that deliver fast, intuitive, and engaging customer journeys across discovery, ordering, and checkout.Partnering closely with Product, UX, Platform Engineering, Analytics, and market stakeholders, you will help deliver high-quality front-end solutions that balance performance, accessibility, maintainability, and speed to market. This role is ideal for an engineer who is passionate about creating exceptional customer experiences, solving complex technical challenges, and delivering impact at global scale. Design and implement scalable front-end applications and shared components that power KFC's digital commerce experiencesBuild responsive, accessible, and high-performance user interfaces using modern web technologies and front-end frameworks such as React and Next.js.Lead architecture discussions and drive technical decisions for your team, escalating to Staff/Principal engineers where appropriateSet and enforce code quality standards; mentor engineers through code reviews, pair programming, and technical guidanceOwn technical scoping, estimation, and risk communication for your team's deliverablesDrive onboarding of new engineers onto the KFC Experience TeamPartner with Product, Design, and Back-End teams to deliver seamless end-to-end customer journeys across browsing, customization, ordering, and checkout flowsRepresent engineering in cross-functional planning; act as a technical bridge between engineering and non-technical stakeholdersSupport market-specific custom development while maintaining a scalable core platform, consistent user experience, and strong code quality standardsCollaborate on analytics instrumentation, A/B testing, and experimentation initiatives to continuously improve conversion and customer engagementPartner with Product, QA, and DevOps teams to plan releases, phased rollouts, and continuous delivery practicesTroubleshoot production issues and use monitoring and observability tools to improve application reliability, performance, and customer experienceLeverage AI-assisted development tools and modern engineering practices to improve development efficiency, code quality, and team productivity Required QualificationsBachelor's degree in Computer Science, Information Systems, or equivalent practical experience7+ years of professional software engineering experience, including 4+ years building and operating modern React-based production applications in customer-facing environmentsDemonstrated experience mentoring or leading engineers in a team setting, with a track record of raising the technical bar of a teamAbility to break down ambiguous problems into scoped, deliverable work and drive technical decisions with confidenceExperience designing and building scalable front-end applications for customer-facing digital products, with a strong understanding of modern web architecture and engineering best practicesExperience delivering modern web applications in high-traffic e-commerce, retail, or consumer digital environmentsExperience building internationalized or multi-market applicationsStrong problem-solving, debugging, and analytical skillsExcellent collaboration and English communication skills with both technical and non-technical stakeholders Technical ProficiencyJavaScript/TypeScript and modern front-end frameworks such as React, Next.js, or similarHTML, CSS, responsive design, and cross-browser compatibility best practicesState management, API integration, and modern rendering patterns for web applicationsWeb performance optimization, accessibility standards, and front-end testing practicesExperience leveraging AI-assisted development tools such as GitHub Copilot, Cursor, ChatGPT, Claude, or similar technologies to improve engineering productivity and code quality Strong Experience WithComponent-based architecture and reusable UI systemsCI/CD pipelines such as GitLab CI, GitHub Actions, or similar toolsFront-end testing tools and quality practices, including unit, integration, and end-to-end testingDesign systems, analytics instrumentation, experimentation, and SEO considerations in digital commerce environmentsMonitoring front-end performance and using data to guide customer experience improvementsDeploying, debugging, and operating applications in cloud-native environmentsMonitoring, logging, tracing, and observability practices for production applications Additional Preferred QualificationsExperience with React Native or mobile application developmentFamiliarity with server-side rendering (SSR), static site generation (SSG), component-driven development, and reusable UI architectureExperience supporting high-traffic e-commerce or consumer-facing web applicationsExperience with design systems and close collaboration with UX/UI teamsKnowledge of observability, analytics instrumentation, and performance monitoring for front-end applicationsExperience integrating with GraphQL or REST-based APIsExperience integrating with Headless CMS platforms such as ContentfulFamiliarity with feature flagging, experimentation, and A/B testing platformsExperience working with cloud platforms such as AWS and modern observability toolingBackground in restaurant technology, digital ordering, loyalty, or retail operationsExperience using AI-assisted development workflows to accelerate software delivery and engineering effectivenessPassion for building digital experiences that reflect and elevate a consumer brand Why You'll Love Working Here100% salary during probation periodAnnual Leave: 18 days/ yearFive “Recharge Days” – Extra days, in addition to company holidays.2 days WFH/ weefFlexible Friday afternoonFull salary insurance13th-month bonus1 day off for birthdayAdvanced health insurance (Generali)Regular engagement activities: sport clubs, internal event…Support Macbook and Monitor Working location: Waseco building, 10 Pho Quang, Tan Son Hoa ward, Ho Chi Minh city, Vietnam.